12-letter words ending with S
Dive into the specific realm of 12-letter words that conclude with the letter S. This focused section reveals the fascinating ways in which words of this particular length, ending with S, contribute to the richness of the English language. Whether it's for expanding your vocabulary, solving puzzles, or simply for the love of words, discover how these terms uniquely blend length and ending sound.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| headquarters | 25 | (usually plural) the office that serves as the administrative center of an enterprise | many companies have their headquarters in New York |
| consequences | 25 | - | - |
| instructions | 14 | a manual usually accompanying a technical device and explaining how to install or operate it | - |
| nevertheless | 18 | despite anything to the contrary (usually preceding a concession) | while we disliked each other, nevertheless we agreed |
| difficulties | 21 | - | - |
| surroundings | 14 | the environmental condition | - |
| subconscious | 18 | psychic activity just below the level of awareness | - |
| preposterous | 16 | so unreasonable as to invite derision | a preposterous attempt to turn back the pages of history |
| missionaries | 14 | - | - |
| tuberculosis | 16 | infection transmitted by inhalation or ingestion of tubercle bacilli and manifested in fever and small lesions (usually in the lungs but in various other parts of the body in acute stages) | - |
| transactions | 14 | a written account of what transpired at a meeting | - |
| restlessness | 12 | a lack of patience; irritation with anything that causes delay | - |
| combinations | 18 | - | - |
| headmistress | 18 | a woman headmaster | - |
| helplessness | 17 | powerlessness revealed by an inability to act | - |
| stubbornness | 16 | resolute adherence to your own ideas or desires | - |
| simultaneous | 14 | occurring or operating at the same time | - |
| carelessness | 14 | failure to act with the prudence that a reasonable person would exercise under the same circumstances | - |
| presumptuous | 18 | excessively forward | the duchess would not put up with presumptuous servants |
| fundamentals | 18 | principles from which other truths can be derived | first you must learn the fundamentals |
| appendicitis | 19 | inflammation of the vermiform appendix | - |
| childishness | 21 | a property characteristic of a child | - |
| unscrupulous | 16 | without scruples or principles | unscrupulous politicos who would be happy to sell...their country in order to gain power |
| togetherness | 16 | affectionate closeness | togetherness is the new wonder ingredient in marriage |
| hippopotamus | 23 | massive thick-skinned herbivorous animal living in or around rivers of tropical Africa | - |
| inauspicious | 16 | not auspicious; boding ill | - |
| advantageous | 17 | giving an advantage | a contract advantageous to our country |
| faithfulness | 21 | the quality of being faithful | - |
| selflessness | 15 | acting with less concern for yourself than for the success of the joint activity | - |
| hopelessness | 17 | the despair you feel when you have abandoned hope of comfort or success | - |
| aerodynamics | 20 | the branch of mechanics that deals with the motion of gases (especially air) and their effects on bodies in the flow | - |
| ostentatious | 12 | intended to attract notice and impress others | an ostentatious sable coat |
| fiddlesticks | 23 | - | - |
| fearlessness | 15 | feeling no fear | - |
| subsidiaries | 15 | - | - |
| recklessness | 18 | the trait of giving little thought to danger | - |
| osteoporosis | 14 | abnormal loss of bony tissue resulting in fragile porous bones attributable to a lack of calcium; most common in postmenopausal women | - |
| hypothalamus | 25 | a basal part of the diencephalon governing autonomic nervous system | - |
| gratefulness | 16 | warm friendly feelings of gratitude | - |
| dictionaries | 15 | - | - |
| heartstrings | 16 | your deepest feelings of love and compassion | many adoption cases tug at the heartstrings |
| astrophysics | 22 | the branch of astronomy concerned with the physical and chemical properties of celestial bodies | - |
| friendliness | 16 | a feeling of liking for another person; enjoyment in their company | - |
| disingenuous | 14 | not straightforward or candid; giving a false appearance of frankness | an ambitious, disingenuous, philistine, and hypocritical operator, who...exemplified...the most disagreeable traits of his time |
| sacrilegious | 15 | grossly irreverent toward what is held to be sacred | it is sacrilegious to enter with shoes on |
| underclothes | 18 | undergarment worn next to the skin and under the outer garments | - |
| truthfulness | 18 | the quality of being truthful | - |
| pyrotechnics | 24 | the craft of making fireworks | - |
| encephalitis | 19 | inflammation of the brain usually caused by a virus; symptoms include headache and neck pain and drowsiness and nausea and fever (`phrenitis' is no longer in scientific use) | - |
| homesickness | 23 | a longing to return home | - |
| calisthenics | 19 | the practice of calisthenic exercises | calisthenics is recommended for general good health |
| contemptuous | 18 | expressing extreme contempt | - |
| electrolysis | 17 | (chemistry) a chemical decomposition reaction produced by passing an electric current through a solution containing ions | - |
| cantankerous | 18 | stubbornly obstructive and unwilling to cooperate | - |
| anaesthetics | 17 | - | - |
| rambunctious | 18 | noisy and lacking in restraint or discipline | a social gathering that became rambunctious and out of hand |
| lovesickness | 21 | a pining for a loved one | - |
| graciousness | 15 | the quality of being kind and gentle | - |
| brontosaurus | 14 | huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic | - |
| discourteous | 15 | lacking social graces | - |
| youthfulness | 21 | the freshness and vitality characteristic of a young person | - |
| cheerfulness | 20 | a feeling of spontaneous good spirits | his cheerfulness made everyone feel better |
| chitterlings | 18 | small intestines of hogs prepared as food | - |
| conveniences | 19 | things that make you comfortable and at ease | - |
| commentaries | 18 | - | - |
| subcutaneous | 16 | relating to or located below the epidermis | subcutaneous implant |
| wretchedness | 21 | a state of ill-being due to affliction or misfortune | the misery and wretchedness of those slums is intolerable |
| hindquarters | 25 | the part of an animal that corresponds to the human buttocks | - |
| ambidextrous | 24 | equally skillful with each hand | an ambidextrous surgeon |
| peacefulness | 19 | a state that is calm and tranquil | - |
| homelessness | 17 | the state or condition of having no home (especially the state of living in the streets) | - |
| coffeehouses | 23 | - | - |
| diatomaceous | 17 | - | - |
| pancreatitis | 16 | inflammation of the pancreas; usually marked by abdominal pain | - |
| gracefulness | 18 | beautiful carriage | - |
| haemorrhoids | 21 | - | - |
| indebtedness | 16 | a personal relation in which one is indebted for a service or favor | - |
| completeness | 18 | (logic) an attribute of a logical system that is so constituted that a contradiction arises if any proposition is introduced that cannot be derived from the axioms of the system | - |
| orthodontics | 18 | the branch of dentistry dealing with the prevention or correction of irregularities of the teeth | - |
| folliculitis | 17 | inflammation of a hair follicle | - |
| cumulonimbus | 20 | a dark cloud of great vertical extent charged with electricity; associated with thunderstorms | - |
| decisiveness | 18 | the trait of resoluteness as evidenced by firmness of character or purpose | a man of unusual decisiveness |
| ruthlessness | 15 | feelings of extreme heartlessness | - |
| separateness | 14 | the quality of being not alike; being distinct or different from that otherwise experienced or known | - |
| thoroughness | 19 | conscientiousness in performing all aspects of a task | - |
| preparedness | 17 | the state of having been made ready or prepared for use or action (especially military action) | - |
| gorgeousness | 14 | - | - |
| irregardless | 14 | regardless; a combination of irrespective and regardless sometimes used humorously | - |
| supercilious | 16 | expressive of contempt | curled his lip in a supercilious smile |
| timelessness | 14 | a state of eternal existence believed in some religions to characterize the afterlife | - |
| orthopaedics | 20 | the branch of medical science concerned with disorders or deformities of the spine and joints | - |
| lamentations | 14 | an Old Testament book lamenting the desolation of Judah after the destruction of Jerusalem in 586 BC; traditionally attributed to the prophet Jeremiah | - |
| macrobiotics | 20 | the theory of promoting health and longevity by means of diet (especially whole beans and grains) | - |
| handsomeness | 18 | the quality of having regular well-defined features (especially of a man) | - |
| interspecies | 16 | arising or occurring between species | - |
| knucklebones | 24 | a game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ball | - |
| rhinoceroses | 17 | - | - |
| thankfulness | 22 | warm friendly feelings of gratitude | - |
| preciousness | 16 | the positive quality of being precious and beyond value | - |
| explicitness | 23 | clarity as a consequence of being explicit | - |
| incendiaries | 15 | - | - |
| avitaminosis | 17 | any of several diseases caused by deficiency of one or more vitamins | - |
| asynchronous | 20 | not synchronous; not occurring or existing at the same time or having the same period or phase | - |
| benefactress | 19 | a woman benefactor | - |
| carbonaceous | 18 | relating to or consisting of or yielding carbon | - |
| cowardliness | 18 | the trait of lacking courage | - |
| sluggishness | 17 | a state of comatose torpor (as found in sleeping sickness) | - |
| spitefulness | 17 | malevolence by virtue of being malicious or spiteful or nasty | - |
| proprietress | 16 | a woman proprietor | - |
| unworthiness | 18 | the quality of being not particularly suitable or befitting | his praise released from her loud protestations of her unworthiness |
| vocabularies | 19 | - | - |
| mindlessness | 15 | total lack of meaning or ideas | - |
| nimbostratus | 16 | - | - |
| nightclothes | 21 | garments designed to be worn in bed | - |
| ordinariness | 13 | the quality of being commonplace and ordinary | - |
| endocarditis | 16 | inflammation of the endocardium and heart valves | - |
| fruitfulness | 18 | the intellectual productivity of a creative imagination | - |
| atmospherics | 21 | a crackling or hissing noise caused by electrical interference | - |
| cautiousness | 14 | the trait of being cautious; being attentive to possible danger | - |
| cohesiveness | 20 | the property of being cohesive and sticky | - |
| creativeness | 17 | the ability to create | - |
| crematoriums | 18 | - | - |
| animatronics | 16 | the construction of robots to look like animals (developed for Disneyland) | - |
| absoluteness | 14 | the quality of being complete or utter or extreme | - |
| agribusiness | 15 | a large-scale farming enterprise | - |
| repositories | 14 | - | - |
| vengefulness | 19 | a malevolent desire for revenge | - |
| osteogenesis | 13 | - | - |
| overgenerous | 16 | very generous | - |
| parsimonious | 16 | excessively unwilling to spend | parsimonious thrift relieved by few generous impulses |
| pericarditis | 17 | inflammation of the pericardium | - |
| fabulousness | 17 | - | - |
| frictionless | 17 | lacking all friction | a perpetual motion machine would have to be frictionless |
| gloriousness | 13 | - | - |
| infiniteness | 15 | the quality of being infinite; without bound or limit | - |
| autohypnosis | 20 | - | - |
| carefreeness | 17 | the cheerful feeling you have when nothing is troubling you | - |
| covetousness | 17 | extreme greed for material wealth | - |
| delicateness | 15 | - | - |
| devilishness | 19 | - | - |
| depositaries | 15 | - | - |
| ankylosaurus | 19 | having the back covered with thick bony plates; thought to have walked with a sprawling gait resembling a lizard's | - |
| rootlessness | 12 | - | - |
| solitariness | 12 | a disposition toward being alone | - |
| shirtsleeves | 18 | not wearing a jacket | in your shirtsleeves |
| spaciousness | 16 | spatial largeness and extensiveness (especially inside a building) | his new office lacked the spaciousness that he had become accustomed to |
| therapeutics | 19 | branch of medicine concerned with the treatment of disease | - |
| unchivalrous | 20 | offensively discourteous | - |
| unlawfulness | 18 | the quality of failing to conform to law | - |
| understudies | 14 | - | - |
| metropolises | 16 | - | - |
| obstreperous | 16 | boisterously and noisily aggressive | kept up an obstreperous clamor |
| overcautious | 17 | unnecessarily cautious | sometimes it doesn't pay to be overcautious in business |
| pleasantness | 14 | the quality of giving pleasure | the pleasantness of a cool breeze on a hot summer day |
| polymorphous | 24 | relating to the crystallization of a compound in two or more different forms | polymorphous crystallization |
| epicheiremas | 21 | - | - |
| epigenesists | 15 | - | - |
| epiglottides | 16 | - | - |
| epiglottises | 15 | - | - |
| epigraphists | 20 | - | - |
| epididymitis | 21 | painful inflammation of the epididymis | - |
| epididymides | 22 | - | - |
| epidendrones | 16 | - | - |
| epidiascopes | 19 | - | - |
| epimorphoses | 21 | - | - |
| epimorphosis | 21 | - | - |
| episiotomies | 16 | - | - |
| epistilbites | 16 | - | - |
| epistolaries | 14 | - | - |
| epinephrines | 19 | - | - |
| epiphytotics | 24 | - | - |
| episcopacies | 20 | - | - |
| entrustments | 14 | - | - |
| entwinements | 17 | - | - |
| enucleations | 14 | - | - |
| enumerations | 14 | - | - |
| enunciations | 14 | - | - |
| entreatments | 14 | - | - |
| entrainments | 14 | - | - |
| entranceways | 20 | - | - |
| enurednesses | 13 | - | - |
| envelopments | 19 | - | - |
| epanorthoses | 17 | - | - |
| epanorthosis | 17 | immediate rephrasing for intensification or justification | - |
| epeirogenies | 15 | - | - |
| enviableness | 17 | - | - |
| environments | 17 | - | - |
| enzymologies | 27 | - | - |
| eosinophiles | 17 | - | - |
| erogeneities | 13 | - | - |
| erotisations | 12 | - | - |
| erotizations | 21 | - | - |
| erotologists | 13 | - | - |
| erotomaniacs | 16 | - | - |
| erotophobias | 19 | - | - |
| erubescences | 18 | - | - |
| ergodicities | 16 | - | - |
| ergatomorphs | 20 | - | - |
| equivocators | 26 | - | - |
| eradications | 15 | - | - |
| erectilities | 14 | - | - |
| ergativities | 16 | - | - |
| eruptiveness | 17 | - | - |
| eruptivities | 17 | - | - |
| erysipelases | 17 | - | - |
| erythropsias | 20 | - | - |
| erythrosines | 18 | - | - |
| escapologies | 17 | - | - |
| escarmouches | 21 | - | - |
| escheatments | 19 | - | - |
| erythroniums | 20 | - | - |
| erysipeloids | 18 | - | - |
| erythematous | 20 | relating to or characterized by erythema | - |
| erythorbates | 20 | - | - |
| erythraemias | 20 | - | - |
| erythrocytes | 23 | - | - |
| equanimities | 23 | - | - |
| equabilities | 23 | - | - |
| epitheliomas | 19 | - | - |
| epitrochoids | 20 | - | - |
| epoxidations | 22 | - | - |
| equibalances | 25 | - | - |
| equipollents | 23 | - | - |
| equinumerous | 23 | - | - |
| equinoctials | 23 | - | - |
| equilaterals | 21 | - | - |
| equilibrants | 23 | - | - |
| equilibrates | 23 | - | - |
| equilibrists | 23 | - | - |
| equilibriums | 25 | - | - |
| equivalences | 26 | - | - |
| endeavourers | 16 | - | - |
| endometritis | 15 | inflammation of the lining of the uterus (of the endometrium) | - |
| endomorphies | 20 | - | - |
| endophyllous | 21 | - | - |
| endorsements | 15 | - | - |
| endodontists | 14 | - | - |
| endemicities | 17 | - | - |
| endocuticles | 17 | - | - |
| endodermises | 16 | - | - |
| endoscopists | 17 | - | - |
| enfeoffments | 23 | - | - |
| enforcements | 19 | - | - |
| enframements | 19 | - | - |
| enduringness | 14 | permanence by virtue of the power to resist stress or force | - |
| endothermies | 18 | - | - |
| enfranchises | 20 | - | - |
| enchainments | 19 | - | - |
| enchantments | 19 | - | - |
| enchiridions | 18 | - | - |
| enchondromas | 20 | - | - |
| encephalomas | 21 | - | - |
| encapsulates | 16 | - | - |
| encarnalises | 14 | - | - |
| encarnalizes | 23 | - | - |
| encephalines | 19 | - | - |
| enculturates | 14 | - | - |
| encumbrances | 20 | - | - |
| encystations | 17 | - | - |
| encrustments | 16 | - | - |
| encomenderos | 17 | - | - |
| encounterers | 14 | - | - |
| encouragings | 16 | - | - |
| ensnarements | 14 | - | - |
| enterococcus | 18 | - | - |
| enterocoeles | 14 | - | - |
| enteroptoses | 14 | - | - |
| enteroptosis | 14 | an abnormally downward position of the intestines in the abdominal cavity | - |
| enterobiasis | 14 | an infestation with or a resulting infection caused by the pinworm Enterobius vermicularis; occurs especially in children | - |
| enterobiases | 14 | - | - |
| entablatures | 14 | - | - |
| entablements | 16 | - | - |
| enterotomies | 14 | - | - |
| enterotoxins | 19 | - | - |
| enticingness | 15 | - | - |
| entirenesses | 12 | - | - |
| entitlements | 14 | - | - |
| entomofaunas | 17 | - | - |
| entomologies | 15 | - | - |
| enterprisers | 14 | - | - |
| entertainers | 12 | - | - |
| enthralments | 17 | - | - |
| enslavements | 17 | - | - |
| engrossments | 15 | - | - |
| enhancements | 19 | - | - |
| engrailments | 15 | - | - |
| engagingness | 15 | - | - |
| engineerings | 14 | - | - |
| engorgements | 16 | - | - |
| engraftments | 18 | - | - |
| enjambements | 25 | - | - |
| enkephalines | 21 | - | - |
| ensepulchres | 19 | - | - |
| enquirations | 21 | - | - |
| enouncements | 16 | - | - |
| enlargedness | 14 | - | - |
| enlargements | 15 | - | - |
| enlighteners | 16 | - | - |
| enlivenments | 17 | - | - |
| enneahedrons | 16 | - | - |
| ennoblements | 16 | - | - |
| enormousness | 14 | unusual largeness in size or extent or number | - |
| exotericisms | 23 | - | - |
| exoticnesses | 21 | - | - |
| expatiations | 21 | - | - |
| exophthalmos | 29 | protrusion of the eyeball from the socket | - |
| exophthalmus | 29 | - | - |
| exorbitances | 23 | - | - |
| exoskeletons | 23 | - | - |
| expectancies | 25 | - | - |
| expenditures | 22 | - | - |
| expertnesses | 21 | - | - |
| expectations | 23 | - | - |
| expectatives | 26 | - | - |
| expectedness | 24 | the state of being that is commonly observed | - |
| expectorants | 23 | - | - |
| expectorates | 23 | - | - |
| expediencies | 24 | - | - |
| expiscations | 23 | - | - |
| excorticates | 23 | - | - |
| executancies | 23 | - | - |
| executioners | 21 | - | - |
| executresses | 21 | - | - |
| exemplifiers | 26 | - | - |
| excrescences | 25 | - | - |
| exculpations | 23 | - | - |
| exfoliations | 22 | - | - |
| exhortations | 22 | - | - |
| exiguousness | 20 | - | - |
| exobiologies | 22 | - | - |
| exonerations | 19 | - | - |
| exonucleases | 21 | - | - |
| exoparasites | 21 | - | - |
| exhilarators | 22 | - | - |
| exteriorizes | 28 | - | - |
| exterminates | 21 | - | - |
| externalises | 19 | - | - |
| externalisms | 21 | - | - |
| exteriorises | 19 | - | - |
| extemporizes | 32 | - | - |
| extendedness | 21 | - | - |
| extenuatings | 20 | - | - |
| extenuations | 19 | - | - |
| externalists | 19 | - | - |
| externalizes | 28 | - | - |
| extraditions | 20 | - | - |
| extinguishes | 23 | - | - |
| extirpations | 21 | - | - |
| extortioners | 19 | - | - |
| explanations | 21 | - | - |
| expostulates | 21 | - | - |
| explications | 23 | - | - |
| explorations | 21 | - | - |
| exponentials | 21 | - | - |
| exportations | 21 | - | - |
| exsanguinous | 20 | destitute of blood or apparently so | - |
| exsiccations | 23 | - | - |
| expromissors | 23 | - | - |
| expropriates | 23 | - | - |
| expugnations | 22 | - | - |
| expurgations | 22 | - | - |
| extemporises | 23 | - | - |
| etymologises | 18 | - | - |
| etymologists | 18 | - | - |
| etymologizes | 27 | - | - |
| eucalyptoles | 19 | - | - |
| eucalyptuses | 19 | - | - |
| ethnologists | 16 | - | - |
| euchromatins | 19 | - | - |
| eudaemonisms | 17 | - | - |
| eudaemonists | 15 | - | - |
| eurhythmists | 23 | - | - |
| eurodeposits | 15 | - | - |
| europeanises | 14 | - | - |
| eudaimonisms | 17 | - | - |
| eudiometries | 15 | - | - |
| ethnogenists | 16 | - | - |
| esthesiogens | 16 | - | - |
| estheticians | 17 | - | - |
| estheticisms | 19 | - | - |
| estramazones | 23 | - | - |
| estranghelos | 16 | - | - |
| establishers | 17 | - | - |
| esotericisms | 16 | - | - |
| esotericists | 14 | - | - |
| espiegleries | 15 | - | - |
| estrepements | 16 | - | - |
| etherealness | 15 | - | - |
| etheromanias | 17 | - | - |
| ethicalities | 17 | - | - |
| ethionamides | 18 | - | - |
| etherealizes | 24 | - | - |
| eternalities | 12 | - | - |
| etherealises | 15 | - | - |
| exalbuminous | 23 | - | - |
| examinations | 21 | - | - |
| exanimations | 21 | - | - |
| exasperaters | 21 | - | - |
| exaggerators | 21 | - | - |
| exactingness | 22 | - | - |
| exasperators | 21 | - | - |
| excarnations | 21 | - | - |
| exclusivisms | 26 | - | - |
| exclusivists | 24 | - | - |
| excogitators | 22 | - | - |
| excommunions | 25 | - | - |
| excellencies | 23 | - | - |
| exceptionals | 23 | - | - |
| exclamations | 23 | - | - |
| excoriations | 21 | - | - |
| eviternities | 15 | - | - |
| europeanizes | 23 | - | - |
| evanescences | 19 | - | - |
| evangelicals | 18 | - | - |
| evangelisers | 16 | - | - |
| evangelizers | 25 | - | - |
| evaginations | 16 | - | - |
| euthanatizes | 24 | - | - |
| eurypteroids | 18 | - | - |
| eurythermous | 20 | - | - |
| euthanatises | 15 | - | - |
| evanishments | 20 | - | - |
| evaporations | 17 | - | - |
| eventuations | 15 | - | - |
| everlastings | 16 | - | - |
| everydayness | 22 | ordinariness as a consequence of being frequent and commonplace | - |
| eventualizes | 24 | - | - |
| eventfulness | 18 | - | - |
| eventrations | 15 | - | - |
| eventualises | 15 | - | - |
| eviscerators | 17 | - | - |
| filialnesses | 15 | - | - |
| fineableness | 17 | - | - |
| fingerboards | 19 | - | - |
| fingerguards | 18 | - | - |
| fingerplates | 18 | - | - |
| fingerprints | 18 | - | - |
| fingerstalls | 16 | - | - |
| filmsettings | 18 | - | - |
| filthinesses | 18 | - | - |
| fimbriations | 19 | - | - |
| finicalities | 17 | - | - |
| finitenesses | 15 | - | - |
| fitfulnesses | 18 | - | - |
| flabbergasts | 20 | - | - |
| flabbinesses | 19 | - | - |
| flaccidities | 20 | - | - |
| fissiparisms | 19 | - | - |
| firecrackers | 23 | - | - |
| firefighters | 22 | - | - |
| firelighters | 19 | - | - |
| fissionables | 17 | - | - |
| fervidnesses | 19 | - | - |
| fibreglasses | 18 | - | - |
| fibrinolyses | 20 | - | - |
| fiberglasses | 18 | - | - |
| festinations | 15 | - | - |
| festooneries | 15 | - | - |
| festschrifts | 23 | - | - |
| fetoproteins | 17 | - | - |
| feverishness | 21 | a rise in the temperature of the body; frequently a symptom of infection | - |
| fianchettoes | 20 | - | - |
| fibrinolysis | 20 | a normal ongoing process that dissolves fibrin and results in the removal of small blood clots | drugs causing fibrinolysis have been utilized therapeutically |
| fieldworkers | 23 | - | - |
| fiendishness | 19 | - | - |
| fiercenesses | 17 | - | - |
| fibrocements | 21 | - | - |
| fibronectins | 19 | - | - |
| fibrositises | 17 | - | - |
| ficklenesses | 21 | - | - |
| flickertails | 21 | - | - |
| flocculators | 19 | - | - |
| flocculences | 21 | - | - |
| floorwalkers | 22 | - | - |
| floppinesses | 19 | - | - |
| florescences | 19 | - | - |
| flimflammers | 24 | - | - |
| flimsinesses | 17 | - | - |
| flintinesses | 15 | - | - |
| flippantness | 19 | - | - |
| floridnesses | 16 | - | - |
| fluorescents | 17 | - | - |
| fluorimeters | 17 | - | - |
| fluoresceins | 17 | - | - |
| fluctuations | 17 | - | - |
| fluegelhorns | 19 | - | - |
| fluentnesses | 15 | - | - |
| fluffinesses | 21 | - | - |
| flagellators | 16 | - | - |
| flammiferous | 22 | - | - |
| flannelettes | 15 | - | - |
| flagginesses | 17 | - | - |
| flagitations | 16 | - | - |
| flagrantness | 16 | - | - |
| flamboyances | 24 | - | - |
| flamboyantes | 22 | - | - |
| flapperhoods | 23 | - | - |
| flectionless | 17 | - | - |
| fleecinesses | 17 | - | - |
| fleetingness | 16 | the property of lasting for a very short time | - |
